Citazione Stile APA (7a Edizione)

Upfield, A. W. (1954). The mountains have a secret. Pan ; William Heinemann.

Citazione stile Chigago Style (17a edizione)

Upfield, Arthur William. The Mountains Have a Secret. London: Pan ; William Heinemann, 1954.

Citatione MLA (8a ed.)

Upfield, Arthur William. The Mountains Have a Secret. Pan ; William Heinemann, 1954.